Dear Hannah
This is Kawaguchi Hidetoshi. This is my humble answer to the question.
I used to think about the afterlife in an empty and pessimistic way, but as I practice Buddhism, I have been able to gain even a little bit of confidence about how it will survive.
It is about the state of mind related to mental inheritance (continuum of mind) that continues even after death as a fine consciousness.
Our existence is called a “hypothetical union,” and the five elements are composed of color (matter/body), reception (sensory/sensory action), imagination (expression/conceptual action), action (intention/willpower), and consciousness (awareness/cognitive action), depending on various causes (causes and conditions), and these elements are gathered together by depending on each other due to various causes (causes and conditions), but even after death, this body dies, and physical functions and effects as it are now stop Actually, I think that mental inheritance (mental continuum) as fine consciousness that is not affected by physical function will continue to exist due to various causes and conditions.
Also, in the mental inheritance and mental continuum as fine consciousness, all of the numerous acts and karma up until now, including past and present lives, of course, will be carried over from now on.
There is no such thing as an actual self that never changes forever, but it is possible for something to survive depending on various causes and relationships.
So, I don't think everything will disappear.
However, in mental inheritance after death, the influence of one's own actions (karm/karma) is actually strongly reflected along with various causes and relationships, and the destination is roughly determined.
Therefore, as far as possible, I would like to make adjustments so that we can head to a better destination by firmly adjusting good karma now, now, and in the future.
If possible, it is essential in Buddhism to break away from this cycle of hesitation and suffering and aim to reach enlightenment and nirvana by firmly adjusting good karma to move towards enlightenment and nirvana.
If possible, I would be grateful if you could take this opportunity to become even more interested in Buddhism, and by all means proceed with your studies.
Kawaguchi Hidetoshi Gassho